Chime Plugin
To use this method, you will need both ISIS/DrawTM and Chime installed on your computer. These are two separate programs created by Symyx Technologies, and they can be downloaded here: http://www.symyx.com/downloads/index.jsp.
Please note that Chime is not compatible with many browsers (including Internet Explorer 7.0 and most Macintosh browsers), so if you’re having problems seeing structures, please switch to the Marvin Applet method of searching. To go to the ISIS/Draw structure editor, double-click on the structure input box.